/* El formulario: lo usan la página de contacto y la de propuestas */

.formulario {
    display: flex;
    flex-direction: column;
    gap: clamp(0.7rem, calc(1.8 * var(--vh-estable, 1vh)), 1.4rem);
    width: 100%;
    max-width: 36rem;
    padding: clamp(1rem, calc(2 * var(--vh-estable, 1vh)), 1.6rem) clamp(1.2rem, 2.2vw, 1.9rem);
    border: 1px solid rgba(28, 28, 28, 0.1);
    border-radius: clamp(12px, 1.2vw, 20px);
    background-image: linear-gradient(165deg, rgba(28, 28, 28, 0.07) 0%, rgba(28, 28, 28, 0.045) 100%);
    -webkit-backdrop-filter: blur(18px) saturate(115%);
    backdrop-filter: blur(18px) saturate(115%);

    /* Vidrio gris: un reflejo arriba y la sombra que lo levanta. */
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.75),
        0 26px 56px -30px rgba(28, 28, 28, 0.45);
}

.formulario__campo {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    min-width: 0;
    padding: 0;
    border: 0;
    margin: 0;
}

.formulario__etiqueta {
    display: block;
    width: 100%;
    padding: 0;
    font-size: var(--texto-sm);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-align: center;
    color: rgba(28, 28, 28, 0.82);
}

.formulario__obligatorio {
    color: var(--color-obligatorio, #FF6B5B);
}

.formulario__ayuda {
    color: rgba(28, 28, 28, 0.6);
    font-weight: 300;
    color: var(--color-texto-suave);
}

.formulario__control {
    width: 100%;
    padding: clamp(0.6rem, calc(1.4 * var(--vh-estable, 1vh)), 0.85rem) 1.05rem;
    border: 1px solid rgba(28, 28, 28, 0.14);
    border-radius: var(--radio-sm);
    background-color: rgba(255, 255, 255, 0.72);
    font-family: inherit;
    font-size: var(--texto-base);
    color: var(--color-carbon);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    transition:
        border-color 0.3s var(--curva-suave),
        background-color 0.3s var(--curva-suave);
}

.formulario__control--area {
    min-height: clamp(4rem, calc(9 * var(--vh-estable, 1vh)), 6.5rem);
    resize: vertical;
    line-height: 1.55;
}

@media (max-width: 1100px) {
    /* El selector nativo puede recalcular su alto al redimensionar el
       navegador. Reservar la línea y el relleno desde la primera pintura. */
    select.formulario__control--lista {
        block-size: calc(1.6em + 2 * clamp(0.6rem, calc(1.4 * var(--vh-estable, 1vh)), 0.85rem) + 2px);
    }
}

.formulario__control::placeholder {
    color: rgba(28, 28, 28, 0.42);
}

.formulario__control:hover {
    border-color: rgba(28, 28, 28, 0.26);
}

.formulario__control:focus-visible {
    outline: none;
    border-color: var(--color-eucalipto-hondo);
    background-color: var(--color-blanco);
}

.formulario__control[aria-invalid="true"] {
    border-color: var(--color-naranja);
}

.formulario__opciones {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem;
    list-style: none;
    padding: 0;
    margin-top: 0.2rem;
}

.casilla {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: clamp(0.5rem, calc(1.2 * var(--vh-estable, 1vh)), 0.7rem) 0.85rem;
    border: 1px solid rgba(28, 28, 28, 0.14);
    border-radius: var(--radio-sm);
    background-color: rgba(255, 255, 255, 0.62);
    cursor: pointer;
    transition:
        border-color 0.3s var(--curva-suave),
        background-color 0.3s var(--curva-suave);
}

.casilla:hover {
    border-color: rgba(28, 28, 28, 0.3);
}

.casilla__control {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.casilla__marca {
    position: relative;
    flex: none;
    width: 18px;
    height: 18px;
    border: 1px solid rgba(28, 28, 28, 0.3);
    border-radius: 4px;
    transition:
        border-color 0.25s var(--curva-suave),
        background-color 0.25s var(--curva-suave);
}

.casilla__marca::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 6px;
    width: 4px;
    height: 8px;
    border: solid var(--color-carbon);
    border-width: 0 2px 2px 0;
    rotate: 45deg;
    opacity: 0;
    transition: opacity 0.2s var(--curva-suave);
}

.casilla__texto {
    font-size: var(--texto-sm);
    line-height: 1.3;
    color: rgba(28, 28, 28, 0.8);
}

.casilla__control:checked + .casilla__marca {
    border-color: var(--color-naranja);
    background-color: var(--color-naranja);
}

.casilla__control:checked + .casilla__marca::after {
    opacity: 1;
}

.casilla:has(.casilla__control:checked) {
    border-color: rgba(255, 165, 41, 0.75);
    background-color: rgba(255, 165, 41, 0.14);
}

.casilla--radio .casilla__marca {
    border-radius: 50%;
}

.casilla--radio .casilla__marca::after {
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border: 0;
    border-radius: 50%;
    background-color: var(--color-carbon);
    rotate: none;
    translate: -50% -50%;
}

.formulario__campo--servicios .formulario__opcion:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    width: calc(50% - 0.3rem);
    margin-inline: auto;
}

.casilla:has(.casilla__control:focus-visible) {
    outline: 2px solid var(--color-eucalipto);
    outline-offset: 3px;
}

.formulario__error {
    font-size: var(--texto-sm);
    line-height: 1.3;
    color: var(--color-naranja);
}

.formulario__error:empty {
    display: none;
}

.formulario__campo.tiene-error .casilla {
    border-color: rgba(255, 165, 41, 0.5);
}

.formulario__trampa {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

.formulario__pie {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.2rem;
    text-align: center;
}

.formulario__enviar[disabled] {
    opacity: 0.6;
    cursor: progress;
}

.formulario__aviso {
    font-size: var(--texto-sm);
    line-height: 1.4;
    color: var(--color-texto-suave);
}

.formulario__aviso:empty {
    display: none;
}

.formulario__privacidad {
    font-size: var(--texto-xs);
    line-height: 1.6;
    text-align: center;
}

.formulario__privacidad a {
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.formulario__aviso[data-estado="error"],
.formulario__aviso[data-estado="espera"] {
    color: var(--color-naranja);
}

.formulario__aviso[data-estado="listo"] {
    color: var(--color-eucalipto);
}

/* La lista desplegable se viste como el resto de los campos */
.formulario__control--lista {
    appearance: none;
    padding-right: 2.4rem;
    background-image: linear-gradient(45deg, transparent 50%, rgba(28, 28, 28, 0.55) 50%), linear-gradient(135deg, rgba(28, 28, 28, 0.55) 50%, transparent 50%);
    background-position: calc(100% - 1.15rem) 50%, calc(100% - 0.8rem) 50%;
    background-size: 0.35rem 0.35rem;
    background-repeat: no-repeat;
    cursor: pointer;
}